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Buy Octagon Shape 20x15 mm Gems

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Octagon Shape 20x15 mm Gems

Some people by gems by color or price, but for many, it is best to buy gems by shape and size - especially if you're in need of a gem to replace a previous item that was lost or damaged. Calibrated Octagon shape / Emerald-Cut, faceted and cabochon gems available now in 20 x 15 mm size range. Shop a wide range of calibrated gemstones by size online at wholesale from GemSelect.

As a general guideline, when it comes to 'calibrated' gems, they are not usually expected to be cut to exact measurements. For calibrated gemstones weighing under one carat, most jewelry settings will accommodate a gem which is within 0.2 mm of the calibrated size in order to fit a standard setting. For gemstones that weigh over one carat, a larger variance is acceptable, often round shape settings will allow 0.3 mm or slightly higher even. This small variance can usually be accommodated for most standard style settings. Round-cut gemstones should also have a greater variance in acceptable size when it comes to calibration; in fact it is usually possible to mount a round stone of any size in the closest standard setting.

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Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

I ordered more than I plan to keep to choose best quality. Glad for the return policy. Glad for the good reviews.

Posted By Carol in September, 2021
Source: Bizrate

Overall Rating -> 10 star ratings

It was all good

Posted By Jimy in November, 2021
Source: Bizrate

Overall Rating -> 9 star ratings

I make wire wrapped pendants for birthday presents, and always feature a birthstone as the base for the project. GemSelect has a wide variety of shape/size pieces to fit any budget. A detailed description of each individual stone is perfect for those searching for particular stones for their application, and information on stone treatments and the like are phenomenal.

Posted By AbysmalHippo7 in June, 2021
Source: Bizrate

Overall Rating -> 10 star ratings

Easy ordering process, pictures are great for comparisons

Posted By Moose in October, 2021
Source: Bizrate

Overall Rating -> 9 star ratings

It is a user friendly and have so many selections to choose from.

Posted By GEMCOLLECTOR in September, 2021
Source: Bizrate

Overall Rating -> 10 star ratings

I have ordered many many gems over the years from them and I am always VERY happy!! And if I wasn't they do accept returns which is a great peace of mind.

Posted By SaraP in July, 2021
Source: Bizrate

Overall Rating -> 10 star ratings

this is my first experience with GemSelect so I can’t really comment on much more than the website & purchasing experience, which was great. there were a few stones I went to look at that didn’t really have descriptions about them (their properties or spiritual benefits for example) like some of the other stones & I thought that was interesting & I wondered why they didn’t. but all in all, the purchasing experience was easeful & I can’t wait to receive my gems & see if the quality is as beautyfull as they seem to be in the pictures.

Posted By Dove Love in January, 2022
Source: Bizrate

Overall Rating -> 10 star ratings

I am very happy with Gem Select I have Bought very many Gemstones from Gem Select and IT IS ALL VERY GOOD !!! Thank you, HV

Posted By Hondo in March, 2022
Source: Bizrate

Overall Rating -> 9 star ratings

would be nice to have idea section to use the gems for. I am having a jewler create a necklace for my wife, but it would have been nive to see some examples.

Posted By Treegod in April, 2022
Source: Bizrate

Overall Rating -> 10 star ratings

I love this online site. I can browse and select pieces at my leisure - on my schedule. The gemstones are reasonably priced and appear to be quality for the price.

Posted By Rene in June, 2021
Source: Bizrate

Overall Rating -> 9 star ratings

No comment other than can you add more beads or drilled spheres to your inventory. Finding high quality beads on the internet is almost impossible. Buying from your site i fell confident what i am getting is real.

Posted By Mark in April, 2022
Source: Bizrate

Overall Rating -> 10 star ratings

something you never seen before so beautiful and energizing. thank you.

Posted By SK in November, 2021
Source: Bizrate

Overall Rating -> 10 star ratings

Great selection, the user interface was somewhat irksome. If there was a way to filter out specific items (I.e. particular treatments to the gemstones), or would greatly improve the site. Otherwise, great!

Posted By Jam10901 in December, 2021
Source: Bizrate

Overall Rating -> 10 star ratings

Easy to use the site. Several options to narrow the search.

Posted By KW in August, 2021
Source: Bizrate

Overall Rating -> 10 star ratings

Lo que me molesta un poco es que el envio rapido se cobra como tal de 2-3 dias, por lo que lo podrian hacer un poco mas economico y que sea un solo envio no dos opciones de envio, al comprar cierta cantidad de gemas o una cantidad de dinero podria ser gratis, es mi opinion, pero me encanto el sitio, mucha variedad y a buen precio perfecta para joyeria personal o regalos...

Posted By YidamYi in April, 2022
Source: Bizrate
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Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
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Note: 1ct = 0.2g

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